Book Image

Mastering Python Data Analysis

By : Magnus Vilhelm Persson
Book Image

Mastering Python Data Analysis

By: Magnus Vilhelm Persson

Overview of this book

Python, a multi-paradigm programming language, has become the language of choice for data scientists for data analysis, visualization, and machine learning. Ever imagined how to become an expert at effectively approaching data analysis problems, solving them, and extracting all of the available information from your data? Well, look no further, this is the book you want! Through this comprehensive guide, you will explore data and present results and conclusions from statistical analysis in a meaningful way. You’ll be able to quickly and accurately perform the hands-on sorting, reduction, and subsequent analysis, and fully appreciate how data analysis methods can support business decision-making. You’ll start off by learning about the tools available for data analysis in Python and will then explore the statistical models that are used to identify patterns in data. Gradually, you’ll move on to review statistical inference using Python, Pandas, and SciPy. After that, we’ll focus on performing regression using computational tools and you’ll get to understand the problem of identifying clusters in data in an algorithmic way. Finally, we delve into advanced techniques to quantify cause and effect using Bayesian methods and you’ll discover how to use Python’s tools for supervised machine learning.
Table of Contents (15 chapters)
Mastering Python Data Analysis
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface

Summary


In this chapter, we looked at linear, multiple, and logistic regression. We fetched data from online sources, cleaned it up, and mapped it to the data structures that we are interested in. The world of statistics is huge and there are numerous special areas even for these somewhat straightforward concepts and methods. For regression analysis, it is important to note that correlation does not always mean causation, that is, just because there is a correlation between two variables, it does not mean that they depend on one another in nature. There are websites that show these spurious correlations; some of them are quite entertaining ( http://www.tylervigen.com/spurious-correlations ).

In the next chapter, we will look at clustering techniques to find similarities in data. We will start out with an example using the same data that we saved in this chapter when performing multiple regression analysis.